Lennox Core Unit Controller

63
Table 12. CORE Control System Unit Parameters
Control
Parameter
No
Screen Name
Parameter Short
Description
Control Value
Units Description
Min. Default Max.
191
SRV OUTPT DB
RH
Service Output
Deadband for
Relative Humidity
2 13 100 %
Service Output Deadband for Relative
Humidity
192
SRV OUTPT DB
TEMP
Service Output
Deadband for
Temperature
1 8 162 °F
Service Output Deadband for
Temperature
193
SRV OUTPT
DELAY
Service Output
Delay
64 416 8160 Seconds Service Output Delay
194
LOAD SHED
NUM COMP
Number of
compressors to
shed during load
shedding
0 0 4 Option
Number of compressors to be turned off
when load shedding is active.
ApplicabletoStandardEfciency3-to
6-ton units only. 2-stage compressor, a
value of one shuts off 2nd stage only and
a value of 2 turns compressor completely
off.
196 MAC ADDRESS MAC Address 0 128 128 Address
BACnet MAC Address. A value of 0-128
sets the BACnet MAC address to that
value.
197 BAUD RATE Baud Rate
9.6K
19.2K
38.4K
76.8K
Option Baud rate setting.
System 3 Parameters
201
DACC OAT RS
ADJ BND
Discharge Air
Control Cooling
Outdoor Air
Temperature
Adjustment Band
0 0 30 °F
• Discharge Air Control Cooling
outdoor temperature ambient
cooling adjustment reset band.
• Also used to reset free cooling set
point (Parameter 159).
202
DACC OAT RS
ADJ SP
Discharge Air
Control Cooling
Outdoor Air
Temperature
Cooling Reset Set
Point
40 80 100 °F
• Discharge Air Control Cooling
outdoor air temperature cooling
reset set point.
• Also used to reset free cooling set
point (Parameter 159).
203
DACC OAT RS
PRP BND
Discharge Air
Control Cooling
Outdoor Ambient
Air Temperature
Cooling
Proportional Band
1 20 60 °F
• Discharge Air Control Cooling
outdoor ambient temperature
cooling proportional band.
• Also used to reset free cooling set
point (Parameter 159).
204
DACC RAT RS
ADJ BND
Discharge Air
Control Cooling
Return Air Reset
Adjustment Band
0 0 30 °F
• Discharge Air Control Cooling
return air reset adjustment band. 0
disables return air cooling reset.
• Also used to reset free cooling set
point (Parameter 159).
205
DACC RAT RS
ADJ SP
Discharge Air
Control Return Air
Reset Adjustment
Set Point
50 70 80 °F
• Discharge Air Control Cooling return
air reset set point.
• Also used to reset free cooling set
point (Parameter 159).
206
DACC RAT RS
PRP BND
Discharge Air
Control Cooling
Return Air Reset
Proportional Band
1 10 30 °F
• Discharge Air Control Cooling return
air reset proportional band.
• Also used to reset free cooling set
point (Parameter 159).
207 DACC RS LIMIT
Discharge Air
Control Cooling
Reset Limit
5 10 20 °F
• Discharge Air Control Cooling total
reset limit. This limits the total DACC
reset allowed.
• Also used to reset free cooling set
point (Parameter 159).